www.gadgetcircuit.com / don't deal with them, everything is so slow

I found lens on the website www.gadgetcircuit.com. I bought the lens, and it was said that the process would be sent after the payment would be confirmed. But I received the email 2 days later, where they told that they needed to reprocess my card. It would take 1-2 days. I waited 7 days and finally they confirmed the purchase. I waited another 5 days, but I haven’t gotten any information about the shipping. I cancelled the order, but they still haven’t returned money back.